/Engine/Plugins/Media/ElectraCDM/Source/ElectraCDM/Public/ElectraCDMClient.h
Unregisters a previously registered event listener.
void UnregisterEventListener ( [TWeakPtr](API\Runtime\Core\Templates\TWeakPtr)< [IMediaCDMEventListener](API\Plugins\ElectraCDM\IMediaCDMEventListener), ESPMode::ThreadSafe > InEventListener )